Obs. : 2019-02-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.531e+11
Venus      3.516e+11
Earth      3.471e+11
Mars       3.493e+11
Jupiter    3.518e+11
Saturn     3.516e+11
Uranus     3.493e+11
Neptune    3.499e+11
Pluto      3.516e+11